This is a report from second post doctoral year at Ltu (2007). During this year I have had the opportunities to in-depth studies and of international knowledge exchange about contemporary briefing processes, construction clients briefing tools, and building performance evaluations to examine how well buildings fulfil clients needs. I have produced two accepted journal papers, visited and been invited as a keynote speaker to several international conferences’. I’ve also been part of the scientific committee in one of the conferences. Moreover, engagement in the European R&D project InPro (026716-2 /Open Information Environment for knowledge-based Collaborative Process throughout the life cycle of a Buildning) have contributed to more comprehensive theoretical studies in Use Case methodology, Requirements Management (RM) and Buildning Performance Evaluation (BPE). In addition to that, continuous participation in the Construction Client Forums educational program have contributed to international collaboration and networking. During the Post Doctoral visit I have also participated in education on master level and participated in the development of one courses.